Weekend horror story....

[Sledog]

Heres mine...I was topping off the sump with the RO/DI on Friday night and forgot to turn it off!!!Woke up casually on Saturday, took a shower and milled around the house when the sound of trickling waste water from the RO unit hit me between the eyes like a semi loaded with bricks.My SG dropped to 1.010.I have since bumped it back up to 1.025.(actually just now!)Good news is that it looks like my Hammer,Red open brain, and yellow polyps are not looking dead anymore and are actually almost fully opened.Crabs and shrimp look fine,and my clowns and firefish look like nothing ever happened.
There are some snails that are not yet dead but they don't look so hot.So, it looks like if I killed anything it may only be a few snails.Now heres the ?'s.I have a 55 gal. tank and a 20 gal. sump.With all the sand, rock, and equipment my system holds about 52 gallons. Does anyone know about how much water overflowed my sump to drop my SG from 1.025 to 1.010? Also, how do you think the sandbed critters and bacteria were affected? Thanks for any replies.

 

[Sledog]

Oops, that topic looks bad..Didnn't mean to belittle or play on the shark attack this weekend

 

[Drewman]

Whats the GPD on you RO unit?

 

[Dave Visovatti]

There is a new device that you put on the supply tube and if anything happins it detects that and shuts the system down.

 

[platylover]

The salinity at 1.025 is about 35ppt and the salinity at 1.010 is about 16ppt.

This is a great way to treat ich by the way. However inverts and corals do not like it.

 

[jdeets]

I had a similar surprise when I got home from work today.

The float switch had failed in the "on" position. The sump was filled to within about three inches of the top. The FW reservoir was empty, and the powerhead in the FW reservoir was running dry.

I stuck my hand in the sump and messed with the float on the switch--it didn't have any effect. So then I decided to pull the float switch out of the water so I could mess with it a little more. YOWZAH! Electricity in finger! The reed switch was shorted and it bit me!

I am very fortunate on two counts. First, my FW water reservoir only holds 6 gallons or so, so that kept the sump from overflowing. Secondly, the ground probe did the trick, too. I figure the ground probe is why the bugger didn't shock me until I pulled it OUT of the water...

BTW, since my "accident" was self-contained, I didn't even check my SG. I figured I'll let the sump evaporate down over the next day or two, and that will gradually increase the SG, instead of raising it right away. In case you're wondering, my tank has about 200 gallons in circulation, so I don't think the extra 5 gallons lowered the SG enough to take any heroic remedial actions...